And that's not very surprising. While I expect low IQ people to mostly benefit from nootropics (e.g magnesium l threonate giving a 9 IQ point increase on average..) I expect for people without existing deficits, to be able to gain ~50 IQ points by optimal training. If not then IQ tests should be improved to better reflect the ability of most humans to become rationalist virtuoses by optimal leveraging of their synaptic plasticity. BTW anyone got a link to a "proper" online free IQ test? It's been a while since I've last benchmarked my brain and BTW I never understood how IQ tests could be comparable given that there exists multiple distinct sets of recognized (by whom) IQ tests.

I would also like to see more atypical/interesting intelligence benchmarks for humans, such as e.g. the amazing https://www.kaggle.com/c/abstraction-and-reasoning-challenge